CN109383482A - Light rail vehicle braking system emergency based on pressure switch alleviates traction method - Google Patents
Light rail vehicle braking system emergency based on pressure switch alleviates traction method Download PDFInfo
- Publication number
- CN109383482A CN109383482A CN201811112817.2A CN201811112817A CN109383482A CN 109383482 A CN109383482 A CN 109383482A CN 201811112817 A CN201811112817 A CN 201811112817A CN 109383482 A CN109383482 A CN 109383482A
- Authority
- CN
- China
- Prior art keywords
- pressure switch
- pressure
- braking system
- brake clamp
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Light rail vehicle braking system emergency based on pressure switch alleviates traction method and is related to rail vehicle braking system troubleshooting technical field, it is installation one pressure switch for signal piping internal pressure in the alleviation pipeline of meeting an urgent need of motor vehicle braking system, and the setting of the action value of pressure switch is consistent with the required pressure value of brake clamp alleviation；When braking system breaks down and cannot achieve brake clamp alleviation, when alleviating pipeline injection hydraulic oil to emergency, when the pressure in pipeline reaches pressure switch action value, pressure in pipeline promotes brake clamp to be totally released, alleviate vehicle braking, the normally opened contact closure of pressure switch simultaneously, to vehicle traction control electronic feedback electric signal, to enable the vehicle to voluntarily running under power under the conditions of brake clamp is alleviated safely.Present invention can ensure that vehicle running under power under the conditions of brake clamp complete incidence graph, is greatly reduced the utilization rate of breakdown lorry, route duration of congestion is reduced, improves troubleshooting efficiency.
Description
Technical field
The present invention relates to rail vehicle braking system troubleshooting technical field, and in particular to a kind of based on pressure switch
Light rail vehicle braking system emergency alleviates traction method.
Background technique
Braking system is the important component of light rail vehicle, and responsible vehicle safe and reliable can stop.Braking system exists
Final goal is to control the release and holding of brake clamp on vehicle, realizes alleviation and braking to vehicle.In traction and coasting
When operating condition, brake clamp is in releasing orientation and guarantees that vehicle is drawn without mechanical resistance；In damped condition, brake clamp is embraced
So that brake lining and brake disc is carried out mechanical friction and then braking deceleration is implemented to vehicle until parking.
Brake clamp is the executing agency of braking system, by the control of hydraulic pressure unit.Brake fluid system is working normally
In the case of squeeze into the hydraulic oil of enough pressure to accumulator by hydraulic pressure unit first, it is hydraulic when carrying out release of brake operation
Oil injects hydraulic oil through release pipe road direction brake clamp by accumulator, separates in hydraulic pressure effect lower brake pad with brake disc, into
And the mechanical resistance of wheel is eliminated, guarantee that wheel is completed to rotate under the conditions of having tractive force and drives vehicle movement.When hydraulic system
When release of brake failure occurs for dynamic system, hydraulic pressure unit will be unable to control brake clamp and unclamp, and emergence treatment scheme is by special
Alleviate pipeline injection hydraulic oil to emergency with hydraulic pump to be alleviated, alleviates hydraulic pressure in pipeline when emergency and reach brake clamp
When alleviation demand, the Simon that fractures is closed, can equally brake lining be made to separate with brake disc, but vehicle can not voluntarily be drawn at this time, only
Library processing can be rescued back to fault car implementation by breakdown lorry, the unobstructed and normal of rail track certainly will be will affect in this way
Run order.
Summary of the invention
When release of brake failure occurs in order to solve motor vehicle braking system, emergency alleviation method can only be such that brake clamp unclamps
And the technical issues of vehicle cannot being made voluntarily to draw go back to library, the present invention provide a kind of light rail vehicle braking system based on pressure switch
System emergency alleviates traction method.
The technical solution adopted for solving the technical problem of the present invention is as follows:
Light rail vehicle braking system emergency based on pressure switch alleviates traction method, is: in motor vehicle braking system
Emergency alleviates installation one pressure switch for signal piping internal pressure in pipeline, and the action value of pressure switch is set
Pressure value needed for alleviating with brake clamp is consistent；When braking system breaks down and cannot achieve brake clamp alleviation,
Pressure when alleviating pipeline injection hydraulic oil to emergency, when the pressure in pipeline reaches the action value of pressure switch, in pipeline
Making every effort to promote is totally released brake clamp, and then alleviates vehicle braking, meanwhile, the normally opened contact closure of pressure switch, in turn
To vehicle traction control electronic feedback electric signal, to enable the vehicle under the conditions of brake clamp is alleviated safely, voluntarily traction is transported
Row.
Pressure in pipeline is examined the beneficial effects of the present invention are: this method alleviates pipeline applying pressure switch in emergency
It surveys, pressure value needed for pressure switch action value is alleviated with brake clamp is consistent, when pipeline inner pressure reaches pressure switch action value
When, pressure signal is converted to electric signal and provides alleviation feedback signal for vehicle traction control circuit by pressure switch, full with this
Sufficient vehicle draws structure condition, on the one hand enables the vehicle to debugging and maintains operation, on the other hand can guarantee that vehicle is being made
Running under power under the conditions of dynamic clamp complete incidence graph.The method significantly reduces the utilization rate of breakdown lorry, reduces route blocking
Time improves troubleshooting efficiency.
Specific embodiment
Alleviating traction method the present invention is based on the light rail vehicle braking system of pressure switch emergency is: in motor vehicle braking system
Emergency alleviate in pipeline installation one and be used for the pressure switch of signal piping internal pressure, and the action value of pressure switch is set
Pressure value needed for the fixed alleviation with brake clamp is consistent；Breaking down in braking system cannot achieve brake clamp alleviation situation
Under, when alleviating pipeline injection hydraulic oil to emergency, when the pressure in pipeline reaches the action value of pressure switch, in pipeline
Pressure promotes brake clamp to be totally released, and then alleviates vehicle braking, meanwhile, the normally opened contact closure of pressure switch, into
And to vehicle traction control electronic feedback electric signal, to enable the vehicle under the conditions of brake clamp is alleviated safely, voluntarily traction is transported
Row.
The present invention can quickly judge the working condition of brake clamp using pressure switch, it may be assumed that emergency is alleviated in pipeline
Pressure cannot be such that pressure switch contact acts, then judge that brake clamp is in on-position, vehicle not can be carried out traction；Emergency is slow
Solution pipeline inner pressure can be such that pressure switch contact acts, then judge that brake clamp is in relieved state, meanwhile, pressure switch is
Vehicle traction control circuit, which provides, alleviates feedback signal, meets vehicle traction structure condition with this, so that vehicle is in brake clamp
Safely and reliably voluntarily running under power under the conditions of complete incidence graph.
Claims (1)
1. the light rail vehicle braking system emergency based on pressure switch alleviates traction method, which is characterized in that this method is: in vehicle
The emergency of braking system alleviates in pipeline installation one and is used for the pressure switch of signal piping internal pressure, and by pressure switch
Action value setting with brake clamp to alleviate required pressure value consistent；Breaking down in braking system cannot achieve brake clamp
In the case of alleviation, when alleviating pipeline injection hydraulic oil to emergency, when the pressure in pipeline reaches the action value of pressure switch,
Pressure in pipeline promotes brake clamp to be totally released, and then alleviates vehicle braking, meanwhile, the normally opened contact of pressure switch
Closure, and then to vehicle traction control electronic feedback electric signal, to enable the vehicle under the conditions of brake clamp is alleviated safely certainly
Row running under power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112817.2A CN109383482A (en) | 2018-09-25 | 2018-09-25 | Light rail vehicle braking system emergency based on pressure switch alleviates traction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112817.2A CN109383482A (en) | 2018-09-25 | 2018-09-25 | Light rail vehicle braking system emergency based on pressure switch alleviates traction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109383482A true CN109383482A (en) | 2019-02-26 |
Family
ID=65419068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811112817.2A Pending CN109383482A (en) | 2018-09-25 | 2018-09-25 | Light rail vehicle braking system emergency based on pressure switch alleviates traction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109383482A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520446A (en) * | 1994-12-28 | 1996-05-28 | Wilson; Larry | Emergency brake release |
| EP2377738A2 (en) * | 2010-04-16 | 2011-10-19 | KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH | Device which works together with a driver brake valve for automatically adjusting the main air supply pressure of vehicles of a rail vehicle |
| CN106274967A (en) * | 2016-08-16 | 2017-01-04 | 中车株洲电力机车有限公司 | A kind of nothing fire loopback monitor control system of locomotive |
| CN108116443A (en) * | 2016-11-28 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of method of novel locomotive without fiery loopback |
-
2018
- 2018-09-25 CN CN201811112817.2A patent/CN109383482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520446A (en) * | 1994-12-28 | 1996-05-28 | Wilson; Larry | Emergency brake release |
| EP2377738A2 (en) * | 2010-04-16 | 2011-10-19 | KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH | Device which works together with a driver brake valve for automatically adjusting the main air supply pressure of vehicles of a rail vehicle |
| CN106274967A (en) * | 2016-08-16 | 2017-01-04 | 中车株洲电力机车有限公司 | A kind of nothing fire loopback monitor control system of locomotive |
| CN108116443A (en) * | 2016-11-28 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of method of novel locomotive without fiery loopback |
Non-Patent Citations (1)
| Title |
|---|
| 刘艳辉，马玉凡，黄玮，周晓: "CCQG型轻轨车重联后停放制动不缓解故障处理方法", 《电力机车与城轨车辆》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190226 |
|
| WD01 | Invention patent application deemed withdrawn after publication |